ui::ContextFactory should not create SurfaceIdAllocators

cc/surfaces/surface_id_allocator.cc

Index: cc/surfaces/surface_id_allocator.cc
diff --git a/cc/surfaces/surface_id_allocator.cc b/cc/surfaces/surface_id_allocator.cc
index 9151400f3ce2107b81ac8a99256e70c043d5a3eb..7ed7f521703b7aa5323125a4d19adc46ea38a408 100644
--- a/cc/surfaces/surface_id_allocator.cc
+++ b/cc/surfaces/surface_id_allocator.cc
@@ -12,17 +12,9 @@
 namespace cc {
 
 SurfaceIdAllocator::SurfaceIdAllocator(uint32_t client_id)
-    : client_id_(client_id), next_id_(1u), manager_(nullptr) {}
-
-void SurfaceIdAllocator::RegisterSurfaceClientId(SurfaceManager* manager) {
-  DCHECK(!manager_);
-  manager_ = manager;
-  manager_->RegisterSurfaceClientId(client_id_);
-}
+    : client_id_(client_id), next_id_(1u) {}
 
 SurfaceIdAllocator::~SurfaceIdAllocator() {
-  if (manager_)
-    manager_->InvalidateSurfaceClientId(client_id_);
 }
 
 SurfaceId SurfaceIdAllocator::GenerateId() {